content: /*
    Write a function that takes in a Binary Tree and returns if that tree is symmetrical. A tree is symmetrical 
    if the left and right subtrees are mirror images of each other.
  */
  import java.util.Stack;
  
  public class BinaryTree {
      // Assume that BinaryTree has properties: left, right, and value.
  
      public boolean isSymmetricalTreeIterative(BinaryTree tree) {
          Stack<BinaryTree> stackLeft = new Stack<>();
          Stack<BinaryTree> stackRight = new Stack<>();
  
          // Initialize stackLeft with the left child of the root node
          // Initialize stackRight with the right child of the root node
          stackLeft.push(tree.getLeft());
          stackRight.push(tree.getRight());
  
          // Perform mirror traversal of the left and right subtrees
          while (!stackLeft.isEmpty()) {
              BinaryTree left = stackLeft.pop();
              BinaryTree right = stackRight.pop();
  
              if (left == null && right == null) {
                  continue; // Both left and right subtrees are symmetric, continue to the next iteration
              }
  
              if (left == null || right == null || left.getValue() != right.getValue()) {
                  return false; // Asymmetry detected, tree is not symmetric
              }
  
              // Push the children of left and right onto the respective stacks in reverse order
              stackLeft.push(left.getLeft());
              stackLeft.push(left.getRight());
  
              stackRight.push(right.getRight());
              stackRight.push(right.getLeft());
          }
  
          return true; // Tree is symmetric
      }
  
      // Other methods and properties for BinaryTree class
  }
  